# flash u vs Popusign

The clearest difference is device support: Popusign at 3 against flash u's —. flash u's advantage is iOS requirement (9.0 vs 15.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | flash u | Popusign |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 5 weeks |
| Size | 53 MB | 105 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Shenzhen Yanse Technology](https://appshunter.io/developer/1371478646) | [General Lighting Electronic Co., Ltd.](https://appshunter.io/developer/1775395523) |

## What reviewers say

### flash u

[App page](https://appshunter.io/ios/app/flash-u/id1606863859)

**In-app purchases:** none


### Popusign

[App page](https://appshunter.io/ios/app/popusign/id6737228339)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is flash u free?

flash u is free to download, with no in-app purchases.

### Is Popusign free?

Popusign is free to download, with no in-app purchases.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*